/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package system;

import datacontrol.DAO;
import java.io.IOException;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import util.Toolkit;

/**
 * checkt welke enquete de ingelogde gebruiker heeft geselecteerd.
 * 
 * @author Joeri
 */
public class CheckEnquete extends HttpServlet {

    /** 
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        if (!Toolkit.checkLogin(request)) {
            // Ogenschijnlijk is de gebruiker niet ingelogd
            response.sendRedirect("EnqueteOphaler");
            return;
        }
        ArrayList<HashMap<String, String>> alleEnquete = null;
        ArrayList<HashMap<String, String>> GebruikersEnquete = null;
        ArrayList<HashMap<String, String>> result = new ArrayList<HashMap<String, String>>();

        int id;
        id = Integer.parseInt(request.getSession().getAttribute("userId").toString());
        //haalt alle enquetes op
        try {
            alleEnquete = DAO.selectQuery("SELECT rowid,* FROM Enquete ");
        } catch (SQLException ex) {
            Logger.getLogger(CheckEnquete.class.getName()).log(Level.SEVERE, null, ex);
        }
        // haalt alle enquetes van de ingelogde gebruiker op
        try {
            GebruikersEnquete = DAO.selectQuery("SELECT rowid,* FROM EnqueteVanGebruiker WHERE Gebruiker_idGebruiker ='" + id + "'");
        } catch (SQLException ex) {
            Logger.getLogger(CheckEnquete.class.getName()).log(Level.SEVERE, null, ex);
        }
        //vergelijkt de enquetes van de ingelogde gebruiker met de huidige enquetes en print op deze manier een titel uit
        for (int i = 0; i < alleEnquete.size(); i++) {
            for (int k = 0; k < GebruikersEnquete.size(); k++) {
                if (alleEnquete.get(i).get("rowid").equals(GebruikersEnquete.get(k).get("Enquete_idEnquete"))) {
                    result.add(alleEnquete.get(i));
                }
            }
        }
        //stuurt alles de goede kant op
        request.setAttribute("result", result);
        try {
            if (request.getParameter("redirect").equals("voorkeur")) {
                getServletContext().getRequestDispatcher("/voorkeurlijst.jsp").forward(request, response);
            }
        } catch (NullPointerException e) {
            getServletContext().getRequestDispatcher("/voorkeurlijst.jsp").forward(request, response);
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /** 
     * Handles the HTTP <code>GET</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Handles the HTTP <code>POST</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Returns a short description of the servlet.
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
